Read an excerpt from 'Doon', the new YA novel based on the musical 'Brigadoon' -- EXCLUSIVE

Attention, musical theater lovers! Doon, a YA novel loosely based on the premise of the musical Brigadoon, hits shelves Aug. 20. The first in a four-book series by Carey Corp and Lorie Langdon, Doon follows best friends Veronica and Mackenna as they spend their summer vacation in Scotland. But things take a turn for the fairy tale when the girls find themselves in the mysterious land of Doon. Read on for an exclusive excerpt from Doon and achat with co-authors Corp and Langdon.